Beer mug



FIG. 1 is a front, perspective view of a beer mug in accordance with my new design;

FIG. 2 is a right-side plan view thereof;

FIG. 3 is a left-side plan view thereof;

FIG. 4 is an end view from a side of the handle;

FIG. 5 is an end view opposite the view of FIG. 4;

FIG. 6 is a top plan view; and,

FIG. 7 is a bottom plan view.

The features shown in dashed lines form no part of the claimed design. 

CLAIM The ornamental design for a beer mug, as shown and described. 